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Can anyone tell me what is the advantage of having a SMA to BNC connector? Is it just the quick detachment attachment or is there some signal advantage to be had?

Hi mister Ape, truly interesting videos..could you make a dIY video of this toroid with all the steps, windings etc? I tried by to copycat but i think i missed someting. 73!

Thanks for the Test report ❤🎉😊

What the hell is the ‘front end’ of a radio?

Thanks for making so many great videos nailing the subjects I need.

Hi, I have looked forever to find info on using a manual tuner for receive only. We have no carrier to drop. Perhaps you could show how to use a VNA with a tuner to mark our band tune points. As far as I can see you would be the first. Thanks

Hi and thank you for all the great information. Question: if I want to build an antenna, how do I measure the impedance so that I can use the correct balun/unun?

baloon is not choke, and choke is not baloon

Can this be done on the RA-87 40 Watt model?

I'm really glad to see this type of review. I contains objective results obtained from some type of test equipment to check that design of the RF emissions. We should keep in mind that the TinySA is also an inexpensive piece of test gear. When the test results are as close as they are in this video, I think that it would be better to use a lab-grade spectrum analyzer to make a better evaluation of the RF signal before judging it as outside of the FCC requirements. The TimySA (and the NanoVNA) is a good rough indicator of the signal quality, but I wouldn't use it as a high acuracy indicator. Jim N4FAF

How would you ground this antenna in a 2nd floor apartment? Also, is it easier to configure/ tune over the Comet HFJ-350M?

Thanks man!

Hey I appreciate any advice you can give. My electronics theory is pretty rusty as I only build kits and do point to point soldering so actually designing stuff is out of my realm. I have a plethora of stuff in my garage from bygone days.....swr meters, multimeters, even a Q tester for transistors. You get the like button smashed today......

About 2 months ago I bought my nanovna-h4 from Bangood. After that I watched pretty near every video available on how to check swr. In the mean time I bought some adapters, cables and dust caps. I finally had the bright idea to try one of the cables I had purchased (sma to so239). It worked! It seems the original cable was bad. Anyway, just an FYI.

Great Video, Very well explained

Dear Ape, as always, thank you for this. First: please do not let the haters/sad hams/know-it-alls get you down. Second: this is so VERY RELEVANT to those of us interested in building our own antennas, and/or, those of us dealing with RFI. You are appreciated. fm KQ4IXD

Hey SmkAp. You get less noise because you are killing your signals. You use lossy chokes, 1:1's, or whatever you can find to develop loss. Try reducing your radio RF gain. That way you don't lose transmit power. I saw a video where you say that the common mode currents are not in addition to our desired signals, but by tuning (matching) the antenna to the transmission line, we maintain all currents as desirable currents rather than trying to attenuate portions of currents you feel we don't need. That's how I keep RF out of the shack. I don't think you fully understand R +jX. R is the resistance of the antenna. All of it. Resistive and the radiation resistance. The X is the additive quantity of the antenna inductive reactance added algebraically to the antenna capacitive reactance. Circuit wise, you could take a resistor, capacitor and an inductor, all in series and your newly developed circuit will act like an antenna. Kinda. You won't have odd multiples. But at the resonance, your XL and Xc cancel and you have the R remaining. Right? Right. This is the electrical model of your antenna. Like your modelling program gives you the R+ jX value. You still with me? Makes sense? No. Because you don't know how to balance this series circuit. I don't believe in balanced and unbalanced circuits (Or antennas), so it doesn't bother me. But you are wondering about that. Why isn't the unbalancedness listed on the modeling program? Model an OCFD. It's not unbalanced. It's great for this old RFI bus driver to be free of the shackles of old XYL's tales. 73. N9XR.

The 7300 has been destroyed by the Yaesu ft710, Obvious this is 3 years later how time changes things.

nice job. yes choke all cables. I even do my mic cable with one of them snap ferrites . i use USB cable on my 7300 so I got nice long one and wrap it threw FT 140-31 bunch of times. if that antenna feed line works out 450 ohm then 9:1 Balun. have to model antenna to get feed point ohms impedance. the off set center fed get confusing that not balance antenna but takes a balanced feed line. That why a Balun . feed line balance to un-balanced . so when looking at Balun and UNUN . you look at feed line in and out. some folded dipole work out 300 ohm . so a 4:1 gets close. when doing folded di pole the distance between the wires is part of impedance. like the folded dipole for FM radio is 300 OHM made out of twin lead. their is a double folded di pole type that is 450 ohm. for best with feed line loss is to get close to the feed line impedance as the antenna as possible. the trouble with window line is keep away from metal and try to keep it dry . 73's

The main thing is every new location we operate from has new noise to deal with and Apes instructions on how to mitigate noise is part of the ham program that we all signed up for.

If you do this test on Easter Island you will see that there is no difference between 0.1W and 1000W, just water.

You Wrong APE Mama says balun chokes are the Devil lOL :)

Thanks. You will now be known as my "Choke Balun Sensei". Much to learn I still have. 😁

Interesting stuff Clarence! 😊 What I don't understand is why you used an LDG tuner with the 7300. Can it do 10:1 in lieu of 3:1 in the 7300 or something?

I just started looking at folded TERMINATED dipoles. Those are different than plain folded dipoles, so, I can't help you. 🤷🏻‍♂️

Good job, Ape, I'm a big believer in using chokes wherever possible..

Darwin was wrong: ape is the next step in human evolution lol

A tutorial on toroidal, sizes, material types (#’s) would be very helpful

Nice job Ape! 73

❤love the videos I have a lot to learn and this is the right balance of technical knowledge and idiots guide. Could you please bump your audio levels up a bit? I’ve got all my settings maxed and it’s still a little low

You got questions? Ape has Manswers.

👍

Ape this message is regarding learning the AARL technician and general books. I am the reading every page of both books studying old school, and testing for both exams on June 1st at the hamfest in Marietta, GA.(Atanta suburb). I finished the technician manual and am in chapter 4 of the general manual now. Burned up 3 pens and 66 pages of notes so far. Probably will have 100+ pages of notes when Im done. Made flashcards too. If you are interested I will share my study techniques to encourage others to deeply dive into this material. To learn it, understand it, and be able to apply it in their radio journey. I did not want to just memorize the Q and A "cheat sheets" and get my general license. Where is the learning in that? You seem to be ine of the best on teaching new people like me. You and Dave Casler. I intend on watching every single one of his videos. Keep up the good work. Thank you. -Dan

Your choke balun diagram does not look like a it has a balanced side to me?

Hey Ape, Rothammel’s Antenna Book, would agree with you as well.